Finding the Fourth Proportional to 408,469.80, 612,704.70 and 396,805.80
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Solution
The fourth proportional to 408,469.80, 612,704.70 and 396,805.80 is: 595,208.70
Step by Step Solution
- Step 1: Write the proportion equation
408,469.80 : 612,704.70 = 396,805.80 : x - Step 2: Convert to fraction form
408,469.80/612,704.70 = 396,805.80/x - Step 3: Cross multiply
408,469.80x = 612,704.70 × 396,805.80 - Step 4: Simplify right side
408,469.80x = 243,124,778,647.26 - Step 5: Solve for x
x = 243,124,778,647.26/408,469.80 - Step 6: Final answer
x = 595,208.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.